It was would numbers 000-000-0000 through 999-999-9999. So that would be 9,999,999,999 + 1 = 10 billion different 10-digit phone numbers.
Answer:
4, 3, 12,
Step-by-step explanation:
Answer:
x = 54
Step-by-step explanation:
2x+2 = 3x-52
2x+54 = 3x
54 = x
Nick : 12, 24, 36,48,60,72,..... 180
Victoria: 20, 40, 60,80....180
Boris: 18,36,54,.....180
they will be together on day 180
good luck